**Differentiation Section 4**

Differentiation by Rule: Powers and Polynomial Functions

Differentiation by Rule:

The following 5 tutorial videos should enable you to attempt all questions in Section 7.

*Note: There are two notations used for the derivative of a function "***dy/dx**" and "**f'(x)**" there is no difference in the meaning of these, "dy/dx" tends to be used if the function to be differentiated is expressed in terms of "y=" and "f'(x)" if the function is expressed as "f(x)=" as you will see in the tutorials.